Pursuant to Part 266 Subpart E (SUPERSEDED: see Part 279) service stations and repair shops are allowed to burn used oil (UO) generated on-site and UO accepted from Do-It-Yourselfers (DIYs), but not UO accepted from other businesses in space heaters. Off-specification used oil can be burned in an industrial boiler, but not in heating boilers, on-site where generated without analysis for specification (SEE ALSO: 50 FR 49191; 11/29/85 and 279.61(a)(2)(ii)).